Exploring Sim Racing: Using Your Phone as a Digital Dash Display (DDU)

As a seasoned gamer with decades spent navigating the digital racetracks, I can’t help but be impressed by the ingenuity and resourcefulness of the sim racing community, as showcased in Louiienation’s recent post on r/simracing. The idea of repurposing an old iPhone 5 into a Digital Dash Display Unit is a testament to both frugality and creativity – traits that I wholeheartedly appreciate.


Sim Racing has evolved into a highly customizable experience, allowing players to enhance their setup in creative ways. One Reddit user, Louiienation, recently sparked a conversation on the r/simracing subreddit by asking for advice on using an old iPhone 5 as a Digital Dash Display Unit (DDU) for their sim racing rig. Their goal is to monitor tire temperature data live while racing in GT3 on iRacing, a feature that isn’t universally available on all dashboards. The post quickly garnered a range of responses as users chimed in with their experiences, showcasing the community’s resourcefulness and the variety of setups people have created to improve their sim racing experience.

Phone as DDU?
byu/Louiienation insimracing

Summary

  • Many users echoed the sentiment that using an old phone as a DDU is a cost-effective way to enhance a sim racing setup.
  • Several commenters pointed out that the inherent limitations, such as lacking tire temperature telemetry in iRacing, can affect usability.
  • Screen size became a significant talking point, with varying opinions on the ideal dimensions for optimal visibility during races.
  • Users shared images and details about their own setups, offering a wealth of practical advice for those looking to implement a similar solution.

The Cost-Effective DDU Solution

In response to Louiienation’s question, many Redditors discussed the idea of transforming old smartphones into digital dashboards for sim racing. MikeePS18 shared that he uses an old phone and Arduino-controlled LEDs as a cost-effective Dashboard Display Unit (DDU), expressing his satisfaction with it. This reflects a prevalent attitude within the sim racing community: maximizing resources and minimizing expenses while pursuing their passion. By upcycling old devices, such as an iPhone 5 or more recent models, racers can enhance their equipment’s technical capabilities, gaining real-time telemetry data at their fingertips, thus promoting a greener approach to hobbies.

Usability Challenges and Workarounds

The discussion quickly turned to the limitations of using phones for displays, particularly around the issue of not having access to real-time tire temperature data on platforms like iRacing. Tabby_ds noted, “iRacing Tire temp data is not exposed to telemetry so you won’t be able to see it via simhub or any other software.” This was a point of contention; while some users found creative ways to display essential information, others acknowledged the limitations of specific games in providing that information. Individuals like DrAlanQuan suggested testing out the old iPhone to gauge its usability firsthand, advising, “Try it and see! I like dashes with very little information, so what IS displayed is nice and big so I can read it quickly.” This practical tip underscores the community’s focus on adapting setups to meet individual preferences and needs.

The Importance of Screen Size

The discussion on screen size turned out to be significant in the comments section, as participants talked about their individual experiences related to visibility and user-friendliness. DrAlanQuan expressed his reservations regarding the iPhone 5’s size, commenting that it is quite narrow, making the screen too short when held sideways. On the other hand, some participants recommended different devices, arguing that a larger screen could enhance visibility during races. One user, Outnumbered_guy, showcased his Samsung Galaxy J7 with a homemade 3D-printed stand, expressing his satisfaction because it only cost him a few euros in filament, which he had on hand, effectively making it free. This creative and budget-friendly approach to customizing setups is prevalent throughout the discussions, demonstrating a community committed to enhancing the sim racing experience by coming up with innovative solutions.

Community Sharing and Inspiration

In this discussion, the friendliness among the sim racing group was particularly noticeable. Participants frequently exchanged photos of their individual setups, with one user showcasing an old Samsung tablet paired with SimHub, saying, “I repurposed an old Samsung Tab 6 I found in a drawer. This is as small as I’d go.” The spirit of mutual assistance and advice, evident through suggestions for DIY mounts, underscores their collective drive to enhance sim racing experiences. Users also expressed how effortless it is to find economical resources like pre-made mounts on online marketplaces such as Etsy, making the switch to mobile DDU (Direct Drive Unit) both simple and budget-friendly.

Over time, the discussion around Louiienation’s quest for an efficient DDU solution unfolded, revealing a dynamic interchange brimming with resources, personal stories, and groundbreaking concepts. The community’s active participation not only encouraged them to experiment with new technology but also underscored the vibrant web of collective knowledge and creative problem-solving that is synonymous with the sim racing realm.

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2024-10-03 07:44